pc-bios/s390-ccw/bswap.h


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/*
 * Byte swap functions - taken from include/qemu/bswap.h
 *
 * This work is licensed under the terms of the GNU GPL, version 2 or (at
 * your option) any later version. See the COPYING file in the top-level
 * directory.
 */

static inline uint16_t bswap16(uint16_t x)
{
    return ((x & 0x00ff) << 8) | ((x & 0xff00) >> 8);
}

static inline uint32_t bswap32(uint32_t x)
{
    return ((x & 0x000000ffU) << 24) | ((x & 0x0000ff00U) <<  8) |
           ((x & 0x00ff0000U) >>  8) | ((x & 0xff000000U) >> 24);
}

static inline uint64_t bswap64(uint64_t x)
{
    return ((x & 0x00000000000000ffULL) << 56) |
           ((x & 0x000000000000ff00ULL) << 40) |
           ((x & 0x0000000000ff0000ULL) << 24) |
           ((x & 0x00000000ff000000ULL) <<  8) |
           ((x & 0x000000ff00000000ULL) >>  8) |
           ((x & 0x0000ff0000000000ULL) >> 24) |
           ((x & 0x00ff000000000000ULL) >> 40) |
           ((x & 0xff00000000000000ULL) >> 56);
}